English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Fertilization rate of the first generation of c oral trout grouper, Plect r opomus leopardu s from wild broodstock in cultured tank was relatively low of 10 - 35%. Based on g onad histology analysis of 30 sample s, only one male was found in early stage maturation . Therefore, it is needed to increase functional male production to ensure an increase level of egg fertilization. The experiment w as conducted for 9 months using coral trout broodstock, from wild stock as control and selected F1 from culture as treatment . Broodstocks were reared in three tank s, each was 100 m 3 in volume with 54 fishes /tank. A ll selected cultured fish (F1) in tank C were implanted with 17 a -MT hormone at 50 m g/kg of body weight every month for 3 consecutive months. Wild stock f ish in tank A and selected cultured fish (F1) in tank B were not implant as controls . The result showed that the number of male  increased 6 times in implanted by 17 a -MT hormone compared to fish without implant only increased 2 times . Therefore, eggs fertilization and hatching rate were significantly increased by implanting F1 broodstocks with hormone1 7a-MT. Keywords: Functional male, broodstock, Coral trout ( Plectropomus leopardus )

PRODUCTION OF FUNCTIONAL MALE BROODSTOCK OF CORAL TROUT GROUPER (Plectropomus leopardus)